bitbake: toaster: delete multiple builds cleanup

This patch cleans up the multiple delete. It:

1) skips build id's that don't exist rather than giving a traceback.
2) let you pass in the ids as a space separated list
3) fixes the usage to match the space separated list format

[YOCTO #7726]

(Bitbake rev: a065f7e5e9c07dbd71a98e7db1d7f711607716f3)

Signed-off-by: brian avery <avery.brian@gmail.com>
Signed-off-by: Elliot Smith <elliot.smith@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/toastermain/management/commands/builddelete.py

@@ -1,4 +1,5 @@
 from django.core.management.base import BaseCommand, CommandError
+from django.core.exceptions import ObjectDoesNotExist
 from orm.models import Build
 from django.db import OperationalError
 import os
@@ -6,12 +7,16 @@ import os
 
 
 class Command(BaseCommand):
-    args    = "buildId"
+    args    = '<buildID1 buildID2 .....>'
     help    = "Deletes selected build(s)"
 
-    def handle(self, buildId, *args, **options):
-        for bid in buildId.split(","):
-            b = Build.objects.get(pk = bid)
+    def handle(self, *args, **options):
+        for bid in args:
+            try:
+                b = Build.objects.get(pk = bid)
+            except ObjectDoesNotExist:
+                print 'build %s does not exist, skipping...' %(bid)
+                continue
             # theoretically, just b.delete() would suffice
             # however SQLite runs into problems when you try to
             # delete too many rows at once, so we delete some direct